Optus Cel-Fi Pro - Smart Repeater for 3G & 4G


Key Features


  • Minimise dead zones and reduce dropped calls

  • Simple three step installation - no cabling or configuring required

  • Supports 3G 900/2100MHz, 4G 1800/2600MHz

  • Locked to the Optus network

  • External antenna port (SMA Female).




  • The Mobile Smart Repeater for Optus is a convenient solution to poor indoor 3G/4G phone coverage

  • Installing this device in your home can improve the reliability of phone calls, text messages, and increase 4G mobile broadband signal

  • For areas with poor outdoor coverage, this model has an external antenna connector to allow the connection of a larger antenna

  • The unit will rebroadcast signal throughout the building allowing nearby mobile phones to automatically receive stronger signal - no pairing, no fiddling about.


Supported Carriers


  • Optus

  • Virgin

  • TPG

  • Amaysim

  • iiNet

  • Other Optus MVNO Resellers.


telstra smart antenna repeater installed in house


A heads up - don't get caught buying an unlicensed repeater in Australia


  • It's buyer beware when it comes to purchasing a repeater
  • In Australia, repeaters must be licensed to operate by a carrier - if unlicensed, the repeater is illegal to use and attracts harsh penalities, including substantial fines and possible jail time
  • Many mobile service providers do not support the use of personal repeaters on their network, due to incorrect set-up and the interference they can cause when connected to the network.


Maximum coverage and network friendly


  • The Cel-Fi system is the only personal repeater that is widely approved by carriers in Australia

  • The smart repeater system is very different to a standard repeater. It's designed to provide maximum coverage, be network friendly, and can be easily installed by the end user.


How does it work?


The Cel-Fi system:

  • continuously monitors power levels of the cell tower it is connected to, constantly adjusting its output power to suit

  • amplifies and disburses a particular carrier’s mobile signal, operating within a set frequency band - this means the service provider can shut down the repeater remotely if needed by using a signal from the base station

  • does not interfere with the carrier’s network or other users on the network

  • has a unique installation process to eliminate feedback into the mobile network.


Optus Requirements - Mobile Smart Repeater


  • As the device is an actively boosted radio transmitter, it is subject to regulatory requirements

  • We will also perform a check of the area upon ordering and may contact you if we have further questions.


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Shipping Weight 1.0000kg
Shipping Width 0.100m
Shipping Height 0.200m
Shipping Length 0.200m
Shipping Cubic 0.004000000m3